Perfect Optronics Limited (HKG:8311) shares have retraced a considerable 30% in the last month, reversing a fair amount of their solid recent performance. The recent drop has obliterated the annual return, with the share price now down 4.5% over that longer period.

Although its price has dipped substantially, you could still be forgiven for thinking Perfect Optronics is a stock not worth researching with a price-to-sales ratios (or "P/S") of 1.3x, considering almost half the companies in Hong Kong's Electronic industry have P/S ratios below 0.4x. Although, it's not wise to just take the P/S at face value as there may be an explanation why it's as high as it is.

What Does Perfect Optronics' Recent Performance Look Like?

For example, consider that Perfect Optronics' financial performance has been poor lately as its revenue has been in decline. It might be that many expect the company to still outplay most other companies over the coming period, which has kept the P/S from collapsing. However, if this isn't the case, investors might get caught out paying too much for the stock.

Do Revenue Forecasts Match The High P/S Ratio?

Perfect Optronics' P/S ratio would be typical for a company that's expected to deliver solid growth, and importantly, perform better than the industry.

In reviewing the last year of financials, we were disheartened to see the company's revenues fell to the tune of 59%. The last three years don't look nice either as the company has shrunk revenue by 40% in aggregate. Therefore, it's fair to say the revenue growth recently has been undesirable for the company.

Weighing that medium-term revenue trajectory against the broader industry's one-year forecast for expansion of 17% shows it's an unpleasant look.

With this in mind, we find it worrying that Perfect Optronics' P/S exceeds that of its industry peers. Apparently many investors in the company are way more bullish than recent times would indicate and aren't willing to let go of their stock at any price. There's a very good chance existing shareholders are setting themselves up for future disappointment if the P/S falls to levels more in line with the recent negative growth rates.

The Key Takeaway

Despite the recent share price weakness, Perfect Optronics' P/S remains higher than most other companies in the industry. Using the price-to-sales ratio alone to determine if you should sell your stock isn't sensible, however it can be a practical guide to the company's future prospects.

Our examination of Perfect Optronics revealed its shrinking revenue over the medium-term isn't resulting in a P/S as low as we expected, given the industry is set to grow. With a revenue decline on investors' minds, the likelihood of a souring sentiment is quite high which could send the P/S back in line with what we'd expect. Should recent medium-term revenue trends persist, it would pose a significant risk to existing shareholders' investments and prospective investors will have a hard time accepting the current value of the stock.

Having said that, be aware Perfect Optronics is showing 2 warning signs in our investment analysis, and 1 of those is a bit concerning.

If strong companies turning a profit tickle your fancy, then you'll want to check out this free list of interesting companies that trade on a low P/E (but have proven they can grow earnings).

Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team (at) simplywallst.com.
This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.